Heman gardiner



H. GARDINER.

Ore Mill.

Patented Julv' 4 Fyz Fiq: Z

773Z- ro e 6 i I HEMAN GARDINER'OF NEW' YORK, N. Y.

QUARTZ-GRUSHERL Specification of Letters Patent No. 11,219, dated July 4:, 1854:.

To aZZ whom it may concem:

Be it known that I, HEMANGARDINER, of` the city, County, and State of New York, have invented certain new and useful Im-- provements in `Machinery for Crushing Quartz and Ore; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accoinpanying drawings, forming part of` this specification, in which- Figure l, is a front elevation, partlysectional, of a machine constructed according to my invention. Fig. 2, isa vertical section of the same through the center from hack to front. F ig. 3, is a` horizontal section of the same, in the line, x, of Fig. 1.

Similar letters of reference indicate corresponding parts in the several figures.

In this machinery, the grincling operation` is performed by balls in a hasin, which has a rolling motion. a

My inventio-n consists, firstly, in a certain method of supporting and giving the desired rolling motion to .the hasin, whereby much of the heavy frame-work necessary in other machines, which employ` a hasin and balls, is dispensed with, and the `Construction of the working parts is simplified.

My invention consists, secondly, in the employment within the hasin, in addition to the usualball which is left to run perfectly free, of a hallwhich is Suspended in a certain manner from above the hasin, so as to revolve around the aXis thereof, and at the same time to rotate upon an aXis ofits own,

and to remain in contact with an inclined portion of the bottom of the hasin in rear of the free hall.

To enable those skilled in the art to make and use my invention, I will proceed to describe its Construction and operation.

A, represents a sold foundaton or bed,

which may he of tirnher or masonry, restiig or built upon the ground, and having a level surface.

B, B, are two timber uprights, supporting a cross-piece, C, over the foundation or bed, A. At the center of the 'cross-piece, is suspended a stationary Vertical shaft, D, at whose lower end is a knob, b, of nearly hemispherical form.

E, represents the hasin in which the prei paratory crushing process is performed, which is of suhstantially similar form to the hasin commonly employed with a hall in it, except that at the center` there is an inverted cup, a, which fits loosely over the knoh, Y?, on the sha`ft,D, which would suspend the hasin if the latter were left free without any ball, at some distance ahove the bed, A.

F, is the hall similar to that generally employed in the hasin, being left to roll quite freely; it weighs down one side of the hasin and causes it to hear upon the bed, which supports it and part of the weight of the pan, leaving only a part of the weight of .the latter Suspended on the shaft.

At about the middle of the length of the` shaft, there is a stationary collar, c, which supports a loose pulley, G. To this pulley is attached an arm, H,`to which is attached a roller, 7", whose periphery bears upon a ath, d, which extends all around therim o the .hasin. This roller hears upon the path, d,

near its lowest part, and when thevpulley, G, receives a rotarymotion, the roller running around the path, d, depresses all si des of the hasin in turn, and gives the hasin a rolling motion on the bed, A; any tendency of the hasin to rotate, being checked by a stud, e, on one side of the hasin, which carries a frietion roller, and h ea's 'against one of the uprghts, B. The rolling motion of the hasin causes this stud to work up and down with the friction roller, -in contact with the upright. The motion given to the hasin resem bles, in a great degree, thatgven to the hasins of other machines; but, this hasin rests on a firm bed and is perfectly steady, while all those hasins are Suspended, `and their great weight, with the greater weight of the hall and contents, cause them when in motion, to produce such excessive vihraton of the franing that it is practically almost impossihle to make it of sufiicient strength, and the .eatest weight hein always on one side of the sh'aft of the asin, causes the hearings to wear unevenly, and the entire machine to get out of truth.

I, is what I term the supplemental ball, which is of about the same size as the hall, F. It is bored through its aXis to fitloosely on a shaft, z', which is Suspended or attached by two rods or chains, J, J, from the pulley, Gr, or instead of being bored to fit the shaft, may be otherwise provided with the means of suspending it, so that it may rotate on its aXis. a The point in the pulley at which the rods or chains are attached, is above the center of the track of the hall, 'and opposite, or nearly so, to the arm, H. The rods or chains, J, J, are of such length as to allow the hall, I, to assume a position about half- Way between the highest and lowest parts of the hasin, and, considering the direction in which the pulley reVolVes, (indicated by an arrow in Fig. 3), the hall, I, should he in rear of the hall, F. This position of the supplementary hall hrings it in contact with the steegest part of the incline of the hottom of the hasin. The revolution of 'the supplementary ball around the axis of the hasin in contact with the bottom of the hasin, or with the contents thereof, causes it to revolve on the shaft, z', and as it follows the hall, F, it comes in contact with the quartz or ore, where there is not so large a body as at the lowest part of the hasin, and grndsit.

The quartz orore is intended to he supplied to the machine continuously with a stream of water, and when ground to a suitable degree of fineness, will be washed away at the spout f, into any suitable receptahle, or received from the said spout hy an amalgamating apparatus. The quarts may however he ground dry, and the pan he charged from time to time, and discharged When the contents are all ground.

hat I claim as my invention, and desire to secure by Letters Patent, is

l. Suspendng the hasin, E, at the center, hy a fixed shaft, D, above a bed, A, in the nanner suhstantially as described, whereby While every part'of its circumference is in turn depressed by an arm, H, and roller, 7', or their equvalents revolving on the shaft, the lowest part of the hasin, Where the greatest weight is, 'always rests upon the bed, and the shaft is relieved of the greater 

